Geokgffi mitchell



G. MITCHELL..

VISE. u

No.1v05-i588. f Patented J1v1137 19,1870.A

ali-111 To all whomt't mail conter-rt;

' Figure 1 represents a longitudinal sido view-'of lthe ltothebed-plate.

ono-Ren MITUHELL, or .Tanna-0N," .NEW-"Jensen 'LenmPat-'eia'ivo-105,588, mainly 1 9, 1870'.

The Schedule referrec to in these ALettere P aten't and making prtofthey same o Be it known that I, Gamen .Mmmm-, f Trjenl;

'ton,.in the -cou'nty of Mercer and State of New'Jer- 'I sey, haveinvented a newjfand ifsefullrnprovement in I' Parallel Viso and I' doherebyfdeclare that thefoli" lowing is a' l,.'clear', and exactdescription thereof, which will enable others skilled inthe art to make.and use tlie'saine, referencebeng had to the accompanying'- drawing`forming part of .this specification.

This'invent-ion relatos to new aud useful improve# ments in 'vises withparallelijaws, whereby they. are made stronger and more durable anduseful than sucli ifiscs have hithertolbeen; and

It consists in the constructionfand arrangement hereinafter described."

` In the accompanying dnawing'- Q Figure 3 is a rear-end View.

Figure 4 is avertical crossf'sectionot' the vise on thefline :c x-ofiigul.

Similar letters of vreference indicate correspondingl parte Y Alis thebed-plate'oi' the vise. B is the stationary jaw, which 'is a portion ofor fast Bf. is the movable jaw. v

C is-the screw,'which, by means ofthe collars there-` on, (near itsheath); is confined in the base orshank of the movable jaw B', but isallowed to revolve freely.

D is the nut-tube, whiciris removably connected with' the `base or shankof the stationary jaw B. The screw-thread is formed in the tube byeither cutting vor brazing, V.and the tube is screwed into the Vbase or1'- The back ends of tljelbars' lare connected together 'by the plate J,which is screwed' on afterthe bars arel in place, and which'acts as a'stop against the base of the stationary jaw; to limit the forwardmovement of the front jaw.

' f By this mode of construction, the movable jaw is kept parallelwitlithev stationary jaw, while the ,viseis' greatly strengthenedbythe'two slidingbars.

Having thus described myinventiom4 y I 'claim' as new andA desire tosecure by 'Letters A The arrangement of pal-ts, substantially as hereindescribed, consisting, essentially, of the attachment of' thestationaryjaw torthe bed-plate A, and of the movable jaw to the paralleljaws B, the groovesgand'f 'h in the stationary jaw 'ancl bed-plate, forthe support and4 guidance of .bars E, the connectingplate J, the movablenut D, and the screw C. .Y p

- GEORGE MITCHELL.

fitnesses J. HOWARD MURRAY,

Wim S. Sooner.

